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वैल्डिंग के दोष ( defects of welding) वेल्डिंग दोष कौन -कौन से है /वेल्डिंग दोष के प्रकार बताइये

manual metal arc welding (MMAW) amperage, arc length, travel speed, angle of approach, angle of travel. weldingwelder

वेल्डिंग का परिचय- अस्थायी,अर्द्ध स्थायी जोड़ , जोड़ ,स्थायी जोड़ ,रिवित जोड़ , लैप जॉइंट, बट जॉइंट welding theory

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वेल्डिंग का परिचय- अस्थायी
वैल्डिंग के दोष ( defects of welding) वेल्डिंग दोष कौन -कौन से है /वेल्डिंग दोष के प्रकार
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